ShearObject
Descriptions of shear objects detected and measured on coadds with metadetection.
Columns
| name | datatype | description | unit | nullable | ivoa:ucd | tap:principal | votable:arraysize | length |
|---|---|---|---|---|---|---|---|---|
| bmask_flags | int | bmask flags for the ShearObject. | true | 0 | ||||
| cell_x | int | Column of the cell within the patch on which this measurement was made. | true | 0 | ||||
| cell_y | int | Row of the cell within the patch on which this measurement was made. | true | 0 | ||||
| dec | double | Detected Declination of the ShearObject. | deg | true | pos.eq.dec | 0 | ||
| g_gaussFlux | float | Flux in g band (measured with gauss algorithm). | nJy | true | 0 | |||
| g_gaussFluxErr | float | Flux uncertainty in g band (measured with gauss algorithm). | nJy | true | 0 | |||
| g_gaussFlux_flags | int | Flags set for flux in g band measured with gauss algorithm. | true | 0 | ||||
| g_pgaussFlux | float | Flux in g band (measured with pgauss algorithm). | nJy | true | 0 | |||
| g_pgaussFluxErr | float | Flux uncertainty in g band (measured with pgauss algorithm). | nJy | true | 0 | |||
| g_pgaussFlux_flags | int | Flags set for flux in g band measured with pgauss algorithm. | true | 0 | ||||
| gauss_T | float | Trace (<x^2> + <y^2>) measurement of the ShearObject (measured with gauss algorithm). | arcsec**2 | true | 0 | |||
| gauss_TErr | float | Uncertainty in the trace measurement of the ShearObject (measured with gauss algorithm). | arcsec**2 | true | 0 | |||
| gauss_flags | int | Overall flags for gauss measurement algorithm. | true | 0 | ||||
| gauss_g1 | float | Reduced-shear g1 measurement of the ShearObject (measured with gauss algorithm). | true | 0 | ||||
| gauss_g1_g1_Cov | float | Auto-covariance of g1 measurement of the ShearObject (measured with gauss algorithm). | true | 0 | ||||
| gauss_g1_g2_Cov | float | Cross-covariance of g1 and g2 measurement of the ShearObject (measured with gauss algorithm). | true | 0 | ||||
| gauss_g2 | float | Reduced-shear g2 measurement of the ShearObject (measured with gauss algorithm). | true | 0 | ||||
| gauss_g2_g2_Cov | float | Auto-covariance of g2 measurement of the ShearObject (measured with gauss algorithm). | true | 0 | ||||
| gauss_object_flags | int | Flags for the ShearObject measurement (measured with gauss algorithm). | true | 0 | ||||
| gauss_psfReconvolved_T | float | Trace (<x^2> + <y^2>) of the reconvolved PSF (measured with gauss algorithm). | arcsec**2 | true | 0 | |||
| gauss_psfReconvolved_flags | int | Flags for reconvolved PSF (measured with gauss algorithm). | true | 0 | ||||
| gauss_psfReconvolved_g1 | float | Reduced-shear g1 of the reconvolved PSF (measured with gauss algorithm). | true | 0 | ||||
| gauss_psfReconvolved_g2 | float | Reduced-shear g2 of the reconvolved PSF (measured with gauss algorithm). | true | 0 | ||||
| gauss_shape_flags | int | Flags for the second moments measurement of the ShearObject (measured with gauss algorithm). | true | 0 | ||||
| gauss_snr | float | Signal-to-noise ratio measure of the ShearObject (measured with gauss algorithm). | true | 0 | ||||
| i_gaussFlux | float | Flux in i band (measured with gauss algorithm). | nJy | true | 0 | |||
| i_gaussFluxErr | float | Flux uncertainty in i band (measured with gauss algorithm). | nJy | true | 0 | |||
| i_gaussFlux_flags | int | Flags set for flux in i band measured with gauss algorithm. | true | 0 | ||||
| i_pgaussFlux | float | Flux in i band (measured with pgauss algorithm). | nJy | true | 0 | |||
| i_pgaussFluxErr | float | Flux uncertainty in i band (measured with pgauss algorithm). | nJy | true | 0 | |||
| i_pgaussFlux_flags | int | Flags set for flux in i band measured with pgauss algorithm. | true | 0 | ||||
| image_flags | int | Flags for the image on which this measurement was made. | true | 0 | ||||
| is_cell_inner | boolean | Whether the object peak is within the inner cell boundary . | true | 0 | ||||
| is_patch_inner | boolean | Whether the object is within the inner patch boundary. | true | 0 | ||||
| is_primary | boolean | Whether this object is to be selected after de-duplication. | true | 0 | ||||
| is_tract_inner | boolean | Whether the object is within the inner tract boundary. | true | 0 | ||||
| metaStep | char | Type of artificial shear applied to image. One of 'ns', '1p', '1m', '2p', '2m'. | true | 0 | 2 | 2 | ||
| mfrac | float | Gaussian-weighted masked fraction for the ShearObject. | true | 0 | ||||
| ormask_flags | int | ored mask flags for the ShearObject. | true | 0 | ||||
| patch | long | Skymap patch ID | true | 1 | ||||
| pgauss_T | float | Trace (<x^2> + <y^2>) measurement of the ShearObject (measured with pgauss algorithm). | arcsec**2 | true | 0 | |||
| pgauss_TErr | float | Uncertainty in the trace measurement of the ShearObject (measured with pgauss algorithm). | arcsec**2 | true | 0 | |||
| pgauss_flags | int | Overall flags for pgauss measurement algorithm. | true | 0 | ||||
| pgauss_object_flags | int | Flags for the ShearObject measurement (measured with pgauss algorithm). | true | 0 | ||||
| pgauss_shape_flags | int | Flags for the second moments measurement of the ShearObject (measured with pgauss algorithm). | true | 0 | ||||
| pgauss_snr | float | Signal-to-noise ratio measure of the ShearObject (measured with pgauss algorithm). | true | 0 | ||||
| psfOriginal_T | float | Trace (<x^2> + <y^2>) measurement of the original PSF from adaptive moments, averaged over the shear bands. | arcsec**2 | true | 0 | |||
| psfOriginal_g1 | float | Reduced-shear g1 of the original PSF from adaptive moments, averaged over the shear bands. | true | 0 | ||||
| psfOriginal_g2 | float | Reduced-shear g2 of the original PSF from adaptive moments, averaged over the shear bands. | true | 0 | ||||
| psfOriginal_flags | int | Flags for the original PSF measurement, ORed over the shear bands. | true | 0 | ||||
| r_gaussFlux | float | Flux in r band (measured with gauss algorithm). | nJy | true | 0 | |||
| r_gaussFluxErr | float | Flux uncertainty in r band (measured with gauss algorithm). | nJy | true | 0 | |||
| r_gaussFlux_flags | int | Flags set for flux in r band measured with gauss algorithm. | true | 0 | ||||
| r_pgaussFlux | float | Flux in r band (measured with pgauss algorithm). | nJy | true | 0 | |||
| r_pgaussFluxErr | float | Flux uncertainty in r band (measured with pgauss algorithm). | nJy | true | 0 | |||
| r_pgaussFlux_flags | int | Flags set for flux in r band measured with pgauss algorithm. | true | 0 | ||||
| ra | double | Detected Right Ascension of the ShearObject. | deg | true | pos.eq.ra | 0 | ||
| shearObjectId primary key | long | Unique identifier for a ShearObject, specific to a single metacalibration counterfactual image. | true | meta.id;src | 1 | |||
| tract | long | Skymap tract ID | true | 1 | ||||
| x | float | Centroid (tract, x-axis) of the detected ShearObject. | true | 0 | ||||
| y | float | Centroid (tract, y-axis) of the detected ShearObject. | true | 0 | ||||
| z_gaussFlux | float | Flux in z band (measured with gauss algorithm). | nJy | true | 0 | |||
| z_gaussFluxErr | float | Flux uncertainty in z band (measured with gauss algorithm). | nJy | true | 0 | |||
| z_gaussFlux_flags | int | Flags set for flux in z band measured with gauss algorithm. | true | 0 | ||||
| z_pgaussFlux | float | Flux in z band (measured with pgauss algorithm). | nJy | true | 0 | |||
| z_pgaussFluxErr | float | Flux uncertainty in z band (measured with pgauss algorithm). | nJy | true | 0 | |||
| z_pgaussFlux_flags | int | Flags set for flux in z band measured with pgauss algorithm. | true | 0 |